Who might choose a single bar?

Shoppers wanting one defined portion

An individually sold 35g bar avoids opening a larger bag for one late-night sweet snack. Tesco and Waitrose list Mallow & Marsh bars in this size.

Shoppers comparing flavours and labels

Vanilla milk chocolate and raspberry dark chocolate offer different flavours. Their listed total sugars also differ: Tesco gives 19.1g per vanilla bar, while Mallow & Marsh gives 15.9g per raspberry bar.

Shoppers checking ingredients or allergens

Both Mallow & Marsh formulations list beef gelatine. Their milk, soya and precautionary allergen information differs, making the current pack label important when an ingredient must be avoided.

What should you compare?

Start with the pack format, then compare nutrition per bar and check the ingredients on the flavour you intend to buy.

Priority What to check Your needs
Pack format Check whether the bar is sold individually or in a multipack. Confirm the weight of each bar and whether the nutrition figures are per bar or per 100g. I want to buy one defined portion, not open a sharing bag or buy several bars at once.
Nutrition per bar For the 35g Mallow & Marsh bars, Tesco lists 19.1g total sugars and 149 calories for vanilla; Mallow & Marsh lists 15.9g total sugars for raspberry, and Waitrose lists 150 calories. Compare the exact pack rather than judging by chocolate type. I want the flavour I’ll enjoy, but I also want to compare the labelled sugars and calories for the whole bar.
Ingredients and allergens Both formulations list beef gelatine. Check the current ingredients for milk and soya, and read the may-contain statement for peanuts, tree nuts, egg and milk as applicable to the flavour. If I avoid beef gelatine or need to exclude an allergen, the precise formulation and pack label determine whether I can choose it.

Common buying mistakes

  • Assuming a small bar contains little sugar

    The two 35g Mallow & Marsh bars list 15.9g and 19.1g total sugars per bar. The NHS distinguishes the total sugars shown on food labels from free sugars, so these figures should not be treated as amounts of free sugars.

    Read the per-bar nutrition panel when comparing flavours, rather than relying on the bar’s size.

  • Using chocolate type as a nutrition shortcut

    For these particular bars, Mallow & Marsh lists 15.9g total sugars for raspberry dark chocolate, while Tesco lists 19.1g for vanilla milk chocolate. That comparison does not establish a rule for other dark- and milk-chocolate products.

    Compare the sugars, calories and portion size on the exact products you are considering.

  • Overlooking gelatine or allergen statements

    Both bar formulations list beef gelatine. The vanilla ingredients include milk and soya, while the raspberry listing includes soya and a precautionary statement covering milk; other may-contain statements also differ.

    Read the current physical pack before eating if you have a dietary exclusion, allergy or intolerance. Waitrose advises that recipes can change.

  • Confusing a similarly named box with a single bar

    Joybuy’s listing for a 100g Mallow & Marsh raspberry box describes a different pack format and ingredient list from the 35g raspberry bar. A shared brand and flavour do not make them the same product.

    Check the pack size and ingredients before substituting one marshmallow product for another.

Brand and retailer references

These references distinguish the bar manufacturer from the retailers whose listings describe the individually sold 35g products.

Mallow & Marsh

Makes the vanilla milk-chocolate and raspberry dark-chocolate marshmallow bars discussed here.

  • Its product information identifies the bar flavours and ingredients, including beef gelatine in both formulations.
  • Neither of these formulations suits someone avoiding beef gelatine; check the current pack for other ingredient and allergen requirements.

Tesco

Lists a single 35g Mallow & Marsh vanilla milk-chocolate bar.

  • Its listing gives per-bar figures of 149 calories and 19.1g total sugars.
  • Tesco advises shoppers to read the product label rather than rely solely on website information.

Waitrose

Lists 35g Mallow & Marsh vanilla and raspberry bars.

  • Its listings identify both flavours and give 149 calories per vanilla bar and 150 per raspberry bar.
  • Waitrose cautions that recipes can change, so ingredients and allergens should be checked on the pack.

Marshmallow snack bars on Joybuy

The Joybuy option here is a pack of marshmallow cereal snack bars. It offers individually portioned bars, but it is not an individually sold 35g chocolate-coated marshmallow bar.

Kellogg's Rice Krispies Squares Marshmallow Snack Bars, pack of eight 28g bars

Kellogg's Rice Krispies Squares Marshmallow Snack Bars, 8 × 28g

Each bar is 28g, giving you a defined portion for a snack. This is an eight-bar multipack, not one bar sold on its own; check the current pack’s ingredients and allergen statement if you avoid particular ingredients.

View on Joybuy

Questions about single marshmallow bars

Is a dark-chocolate marshmallow bar always lower in sugar?

No. Mallow & Marsh lists 15.9g total sugars per 35g raspberry dark-chocolate bar, compared with 19.1g per 35g vanilla milk-chocolate bar on Tesco’s listing, but that is a comparison of these two products only. Check the nutrition panel for any other bar.

Are the Mallow & Marsh vanilla and raspberry bars vegetarian or vegan?

Both formulations list beef gelatine, so neither is suitable for someone avoiding that ingredient. Check the current pack if dietary suitability affects your choice.

Which allergen details should I read?

The vanilla formulation lists milk and soya in its ingredients and may contain peanuts, tree nuts and egg. The raspberry information lists soya and a may-contain statement covering peanuts, tree nuts, egg and milk. Read the physical pack before eating, because formulations and allergen statements can change.